YOU SAID:

The yellow lab played fetch with my sister in law

INTO JAPANESE

黄色いラボは義理の妹とフェッチを果たしました

BACK INTO ENGLISH

Yellow lab played fetch with sister-in-law

INTO JAPANESE

黄色のラボは義理の妹とフェッチを果たしました

BACK INTO ENGLISH

Yellow lab played fetch with sister-in-law